417 results about "Solid surface" patented technology

A robot comprises a memory, a processor, a body and a drive system which are coupled. The drive system comprises one of auger-based surface interface portions and continuous tread surface interface portions. The auger-based surface interface portions and the continuous tread surface interface portions are interchangeable to adapt the robot to one of different operating conditions and different uses. The processor is configured to: control movement of the robot, via the drive system, to traverse across a first surface, wherein the first surface comprises piled granular material, in response to the drive system being configured with the auger-based surface interface portions; and control movement of the robot via the drive system to traverse across a second surface, which is a solid or semi-solid surface other than the piled granular material, in response to the drive system being configured with the continuous tread surface interface portions.

Particulate matter, such as fog, snow, rain, steam, vehicle exhaust, debris (plastic bags), etc. may cause one or more sensor types to generate false positive solid surface detections. In particular, various depth measurements may be impeded by particulate matter. Identifying false positive return(s) may comprise clustering lidar points, determining differences in range indicated by two different lidar devices having lidar points in the cluster, determining first differences that are more negative than a negative difference threshold and second differences that are more positive than a positive difference threshold, determining a first portion of lidar data in the cluster associated with the first differences and the second differences is associated with particulate matter or debris, and controlling a vehicle based at least in part on suppressing the first portion of the lidar data or indicating that the first portion of the lidar data is associated with particulate matter or debris.

The invention relates to the technical field of three-dimensional computer vision and point cloud processing, and provides a point cloud rapid labeling method based on a three-dimensional CAD model and RGB values thereof. The method aims at solving the problems that in the deep learning data set construction process, three-dimensional point cloud semantic information labeling efficiency is low, the labor cost is high, and the automatic labeling quality is poor. The color information of the three-dimensional point cloud is effectively converted into the semantic label, so that quick and automatic labeling of different three-dimensional and profile surfaces in the point cloud is realized. The method comprises the steps of establishing a category-RGB value-label mapping table, carrying out CAD entity modeling and assigning a standard color to an entity surface geometrical shape, setting entity model gridding parameters and exporting the entity model gridding parameters as a PLY format, assigning color RGB values of mesh model patches to vertexes, uniformly sampling expansion points of the mesh model patches, traversing the points and reading the RGB values, and finally obtaining a model. And adding labels according to the category-RGB value-label mapping table, and the like. The method can be applied to the fields of three-dimensional modeling, product quality detection, industrial design and the like.

The invention discloses a preparation method for regulating and controlling the growth of a hydrophobic Cu2S nanowire material on the surface of a copper foil, and relates to the technical field of solid surface, and the preparation method comprises the following specific steps: 1) reacting the treated copper foil in a NaOH solution and an ammonium persulfate solution for 10-30 minutes, taking out the copper foil, washing the copper foil with absolute ethyl alcohol, and drying the copper foil in a drying oven for 10-30 minutes; and soaking the obtained sample in a silane coupling agent KH-570 (gamma-methacryloxy propyl trimethoxy silane) of which the concentration is 2.5% to 10% for 20 to 60 minutes. (2) reacting the sample obtained in the step (1) in a 0.1-1mol / L Na2S solution for 10-30 minutes, then taking out the sample, and continuously soaking the sample in a silane coupling agent for 20-60 minutes to obtain a hydrophobic Cu2S nanowire on the surface of a copper foil; according to the preparation method for regulating and controlling the growth of the hydrophobic Cu2S nanowire material on the surface of the copper foil, the regulation and control of the hydrophobicity of the Cu2S nanowire on the surface of the copper foil are realized by regulating and controlling the proportion of a silane coupling agent and the like; when the modified hydrophobic Cu2S nanowire is soaked in a silane coupling agent KH-570 with the mass concentration of 2.5%-10%, the contact angle of the modified hydrophobic Cu2S nanowire can reach 91.46 degrees to 129.46 degrees.

The invention discloses a cleaning method and equipment for improving the cleanliness of a solid surface. The cleaning method comprises the steps that a cleaning medium containing a cleaning liquid and a gas mixture is injected into a cleaning tank, gas exists in the cleaning medium in the form of micro-nano bubbles, the concentration of the micro-nano bubbles is 106-1012 / L, and the pressure of the gas is 0.01-2.00 MPa; ultrasonic waves with the frequency range of 1 kHz to 1 MHz are applied into the cleaning tank through a multi-frequency ultrasonic wave generating device; and the cleaning medium is adjusted to circularly flow in the cleaning tank so as to clean the surface of the solid. According to the solid surface cleaning method combining the micro-nano bubbles and the ultrasonic technology, the cleaning efficiency and effect are remarkably improved by optimizing generation, distribution and stability of the bubbles and accurately controlling interaction between ultrasonic waves and the bubbles.

A particulate oxide composition comprising cerium oxide, trivalent dopant, and optional additional metal oxide, other than cerium oxide and trivalent dopant, is beneficial to aid in the removal of biological contaminants, such as bacteria, viruses, fungi, protozoa (e.g., amoebae), yeast and algae. This particulate oxide composition contains more cerium oxide than trivalent dopant and has a unique depth profile in which the average trivalent dopant to Ce ratio at about 0 nm to about 3.5 nm from the surface of the particulate composition is greater than the trivalent dopant to Ce ratio at about 15 nm from the surface of the particulate composition. These trivalent doped cerium oxide compositions can be used to remove these biological contaminants from fluids, including air and water, and from solid surfaces. Also described are methods of using compositions containing these trivalent doped cerium oxide compositions to remove biological contaminants.

The invention provides a long-time scale solid surface aging characteristic analysis method and system and electronic equipment, and relates to the technical field of insulation material aging. The method comprises the following steps: preparing a material sample; preparing a solid material sample with good anti-aging performance under a specific working condition according to a material chemical theory and experience; obtaining a solid surface appearance by a high-precision microscope; carrying out accelerated aging on the material at a constant temperature for a certain time; solid surface features including roughness and fractal indexes under different accelerated aging time are extracted, edge curvilinear equation fitting is carried out, and an aging feature curve is generated, so that an aging behavior prediction result is obtained, continuous monitoring and accurate analysis of the solid surface aging process are realized, and the aging behavior prediction accuracy is improved. Through continuous monitoring of the multi-time-node accelerated aging experiment, aging full-period coverage and multi-dimensional data fusion are realized, data accuracy and aging identification precision are improved, and aging behavior prediction precision is improved.

Particulate matter, such as fog, snow, rain, steam, vehicle exhaust, debris (plastic bags), etc. may cause one or more sensor types to generate false positive solid surface detections. In particular, various depth measurements may be impeded by particulate matter. Identifying false positive return(s) may comprise clustering lidar points, determining differences in range indicated by two different lidar devices having lidar points in the cluster, determining first differences that are more negative than a negative difference threshold and second differences that are more positive than a positive difference threshold, determining a first portion of lidar data in the cluster associated with the first differences and the second differences is associated with particulate matter or debris, and controlling a vehicle based at least in part on suppressing the first portion of the lidar data or indicating that the first portion of the lidar data is associated with particulate matter or debris.

The invention discloses a laser-phosphorescence coupling type optical path system for a two-dimensional phosphorescence temperature measurement optical fiber probe, and relates to the field of non-contact solid surface temperature measurement, and the laser-phosphorescence coupling type optical path system is characterized in that an object to be measured is coated with a phosphorescence material coating; the laser light source generates laser capable of exciting the phosphorescent material coating; the laser transmission module is located on a light path of laser emitted by the laser light source; the light splitting module is positioned on a laser emergent light path of the laser transmission module and is also positioned on a phosphorescence emergent light path of the coupling transmission module; the coupling transmission module is positioned on a laser emergent light path which is turned back by the light splitting module and is also positioned on a phosphorescence emergent light path of the object to be measured; the image decomposition module is located on a phosphorescence emergent light path of the light splitting module; the image receiving module is located on a phosphorescence emergent light path of the image decomposition module. On the basis of realizing two-dimensional phosphorescence image acquisition, the laser and phosphorescence transmission efficiency is improved, the size of the probe is reduced, and the problem of high-efficiency transmission of two-dimensional phosphorescence signals in a narrow space is solved.

The invention discloses an engine tail flame and body polarization characteristic integrated modeling simulation method and device, and belongs to the field of polarization characteristic modeling. The method comprises the steps that a surface temperature field and a tail flame flow field of an engine body under a target working condition are obtained, and data mapping is conducted on a preset grid; based on the flow field of the tail flame and the scattering physical property of particles in the tail flame, a Monte Carlo method is used for solving a particle polarization radiation transfer equation, and the polarization characteristic of each grid in a tail flame area is obtained; based on the surface temperature field and the material physical property of the body solid surface, the polarization property of each grid on the body solid surface is obtained by using a multi-parameter surface polarization property calculation method; and based on the preset detection angle and the polarization characteristics of each grid of the body and the tail flame, carrying out shielding relation judgment on all surface elements of each grid so as to obtain a total polarization characteristic. According to the scheme, simulation calculation of the body and tail flame integrated polarization characteristic in the combustion flight process of the engine can be achieved, and the calculation precision of the polarization characteristic is improved.

The invention discloses a method and a device for measuring a dynamic contact angle of liquid on a solid surface. The method comprises the following steps: constructing a to-be-measured system containing a first liquid phase, a fluid phase and a solid phase; immersing the to-be-detected surface of the solid phase in the environment phase upwards or downwards; an end surface object is arranged opposite to the to-be-detected surface, and the two are immersed in the same environment phase; the relative distance and position of the two are adjusted, and a longitudinal fluid bridge is formed through the liquid adding device; the camera device obtains a fluid bridge interface contour image from the side surface; horizontally moving the surface of the end surface object or the solid phase, and applying transverse lateral dragging acting force to the fluid bridge to promote the fluid bridge to deform and contact the peripheral line to move or be about to move; and recording the time sequence change of the image, analyzing and calculating to obtain the time change relationship between the contact angle value and the three-phase contact point position value, and further determining the static, forward and backward contact angles and the contact angle hysteresis value. The method is simple and accurate, has wide applicability, and can cover reliable dynamic contact angle data measurement from hydrophilic to super-hydrophobic surfaces.

The invention relates to an experimental device and an experimental method for researching ultrasonic bubble dynamics, belongs to the technical field of ultrasonic bubble dynamics, and solves the problem that an ultrasonic bubble dynamic process is difficult to comprehensively observe and accurately simulate in a laboratory in the prior art. The experimental device comprises an ultrasonic generator, an experimental water tank and the like, a probe is arranged through a fixing device, and all parts collect data cooperatively. The experimental method comprises the steps of fixing the probe, generating ultrasonic waves and collecting data, moving the probe to repeat the experiment, carrying out numerical simulation, observing the damaged paint coating and the like. According to the method, multi-dimensional data of the bubbles can be comprehensively obtained, theoretical simulation is combined, high-cost testing is avoided, the period is shortened, accuracy and economical efficiency are improved, powerful support is provided for development of related fields of the ultrasonic technology, and understanding of interaction of the ultrasonic bubbles and the solid surface can be deepened from the micro level.

The present invention is a method for determining the liquid-solid adhesion work, during which, in relation to a liquid cylindrically symmetric capillary bridge in a fluid medium between an end having a peripheral circular edge of a measurement element and a solid surface to be tested, a cylindrically symmetrical hold correction is performed on the capillary bridge to determine the change in interfacial area of ​​the capillary bridge and the fluid medium, as well as the capillary bridge and the surface to be tested (S110a), a capillary force is determined (S100) to determine the corresponding total mechanical work (S110b), and for the cylindrically symmetrical hold correction, a difference value of the solid-liquid interfacial tension and the solid-fluid interfacial tension is determined based on the interfacial area change, the total mechanical work, and the liquid-fluid interfacial tension (S120), and the liquid-solid adhesion work is determined by subtracting it from the liquid-fluid interfacial tension (S130). The present invention is further an apparatus for determining liquid-solid adhesion.

The invention belongs to the technical field of wind power generation equipment, and discloses a sliding bearing, a wind power main gear box and a wind turbine generator. The sliding bearing includes a sliding layer. The sliding layer is deposited on the surface of the first member. When the first component and the second component rotate relatively, a lubricating oil layer is formed between the sliding layer and the second component, and the lubricating oil layer serves as a lubricating film with certain bearing capacity and can separate the sliding layer from the solid surface of the second component, so that dry friction is converted into liquid friction among molecules in the lubricating oil layer; the friction coefficient between the sliding layer and the second component is remarkably reduced, and therefore abrasion between the sliding layer and the second component is reduced. The sliding bearing has the advantages of being small in size, light in weight and good in economical efficiency. The sliding layer is made of the wear-resistant material and is deposited on the first component, so that the sliding layer forms a high-hardness and wear-resistant coating on the surface of the first component, and the service life of the sliding bearing can be prolonged.

The invention provides a water lock removing agent suitable for carbonate rock gas reservoirs and a preparation method thereof.The water lock removing agent suitable for the carbonate rock gas reservoirs comprises, by mass, 1-5% of a wetting reversal agent, 1-5% of a water lock removing agent, 1-5% of a water lock removing agent, 1-5% of a water lock removing agent, 1-5% of a water lock removing agent, 1-5% of a water lock removing agent, 1-5% of a water lock removing agent and the balance water. 5%-25% of a nonionic surfactant; 10-50% of an auxiliary agent; and the balance of water. The wetting reversal agent is a fluorosilicone cationic compound. According to the carbonate rock gas reservoir water block removing agent provided by the invention, the structures of Rf and M groups in molecules are limited by the fluorosilicone cationic compound, so that on one hand, the relatively strong adsorption performance of the agent on the surface of carbonate rock is ensured, and on the other hand, the wetting reversal effect of the agent on the solid surface of the carbonate rock is ensured; and the inner surface of the pore throat is endowed with relatively strong liquid drainage performance, so that the gas phase can be discharged from the pore throat under very small formation driving pressure, the gas phase permeability and the gas well yield are improved, and the stable production period of a gas reservoir is prolonged.

The invention discloses a preparation method of photo-thermal anti-icing / deicing slurry, the photo-thermal anti-icing / deicing slurry and application. The preparation method comprises the following steps: in the presence of a basic catalyst, mixing an aqueous dispersion of nanocellulose with a polymer-based photo-thermal material monomer for reaction to obtain a first mixed solution; and mixing the first mixed solution with a water repellent agent solution, carrying out a grafting reaction, and carrying out centrifugal washing to obtain the photo-thermal anti-icing / deicing slurry. After the slurry prepared by the method is used for forming a coating, the problem that an anti-freezing surface is difficult to maintain an anti-freezing state in a long-time use state or a low-temperature and high-humidity environment can be well solved, and in addition, the coating can realize anti-icing and deicing, water and water proofing, thermal management, ultraviolet radiation prevention, photo-thermal sterilization, oil-water separation and the like of a solid surface.

A heavy-duty surface mount post system includes a post base with a mounting member and a post designed to slide over the tube. Shims are mounted between the mounting member and the post to create a tighter fit and to resist galvanic corrosion when the base and post are made of different materials, such as steel and aluminum. Optional decorative skirts provide additional stability and aesthetic appeal. The system is ideal for fencing installations on concrete or other solid surfaces, accommodating a range of tolerances while simplifying assembly.

The present invention relates to the provision of a polyurethane-based structural, whole-skin, solid facestock. A reaction mixture comprising a polyol, a polyisocyanate, and at least two different types of blowing agents having different behaviors is provided. The invention also relates to a method for producing the solid surface material from the reaction mixture.

The present disclosure relates to compositions comprising a solid surface and two or more capture agents that bind to extracellular vesicles (EVs) for capturing EVs derived from cells of the nervous system. The present disclosure further relates to methods or uses of such compositions for treating, diagnosing and / or assessing the likelihood of a subject suffering from a neurodegenerative disease.

The invention provides a water lock removing agent suitable for a coal bed gas reservoir and a preparation method thereof, and the water lock removing agent suitable for the coal bed gas reservoir comprises the following components in percentage by mass: A, 0.05-5% of a fluorine-containing reverse wetting agent, B, 0.05-5% of a fluorine-containing reverse wetting agent, and C, 0.05-5% of a water lock removing agent. B, 0.1 to 30 percent of a surfactant; c, 1-50% of a polar organic solvent; and D, 15 to 98.85 percent of water. The coal bed gas reservoir water block removing agent provided by the invention adopts a full-liquid-phase microemulsion system, so that on one hand, the relatively strong adsorption performance on the coal rock surface and the capability of transporting to a reservoir deep pore throat are ensured, on the other hand, the wetting reversal effect on the coal rock solid surface is ensured, and the inner surface of the pore throat is endowed with relatively strong liquid discharge performance; it is guaranteed that the gas phase can be discharged from the pore throats under the small formation driving pressure, the gas phase permeability and the gas well yield are improved, and the gas reservoir stable production period is prolonged.

A hollow man sized door includes a core and an acrylic outer surface. The acrylic outer surface is seamless and solid. Mounting brackets are selectively attached to the core. Hardware is attached to the door at locations of the mounting bracket. Scratches or damage may be buffed out of or wiped from the acrylic outer surface.

Methods, systems, and devices for applying forces to electrochemical devices are generally described. In some cases, the methods include applying a force to an electrochemical device via a solid surface that, in the absence of an applied force, has at least a portion that is convex with respect to a side of the electrochemical device. Certain embodiments are related to systems and devices for applying a force to an electrochemical cell, with some of the systems and devices employing, for example, solid articles with certain shapes (e.g., convex shapes in the absence of an applied force) and / or inventive couplings.

The invention provides a preparation method and application of novel acrylic continuous pre-polymerized resin. The preparation method comprises the following steps: preheating an MMA solution containing azodiisobutyronitrile to 50-60 DEG C, and enabling the preheated MMA solution to flow into the microreactor main body; the pure MMA is preheated to 90-95 DEG C and then flows into the microreactor main body; and mixing the inflowing materials, controlling the reaction temperature to be 120-130 DEG C, the pressure to be 0.2-0.3 MPa and the retention time to be 5-15 minutes, and carrying out continuous polymerization reaction to prepare the PMMA prepolymer resin. According to the technology, accurate regulation and control of the molecular weight and distribution of the PMMA / MMA prepolymer are realized through a continuous process under high temperature and high pressure, and the goal can be achieved without depending on a chain transfer agent. The method is safe and controllable, the product of the method is perfectly compatible with a solid plane material curing system of'an initiator first and then an accelerant ', and the energy consumption and the safety risk are effectively reduced while the production efficiency and the productivity are remarkably improved.

Articles may be formed from a thermoformable composition, the thermoformable composition including: a) about 35 wt % to about 95 wt % of an acrylic pre-polymerized syrup; b) about 0 wt % to about 10 wt % of a comonomer; and c) about 5 wt % to about 65 wt % of a filler having an average particle size (d50) in a range of about 0.1 μm to about 50 μm; wherein the article has a surface having a gloss measurement at a 60° measurement angle within a range of about 0 Gloss Units to about 20 Gloss Units, and a roughness Ra within a range of about 1 microinch to about 100 microinches. Methods may include producing a thermoformed article by the steps of: i) preparing a thermoformable composition; ii) casting the thermoformable composition into a sheet; and iii) thermoforming the cast sheet against a mold to produce a thermoformed article.

To solve the issue of insufficient adhesion strength when bonding fibers to rubber.SOLUTION: The present invention provides surface-modified fibers and reinforcing fibers that are capable of enhancing adhesion to rubber, without the use of resorcinol and formaldehyde, and a molded article using these fibers. The surface-modified fibers include fibers, and a surface-modifying layer covering at least a part of the surface of the fibers, with the solid surface zeta potential on the surface of the surface-modifying layer ranging from -20.0 to 30.0 mV.SELECTED DRAWING: None

A modular bathroom pod is described which is assembled on site. It has an enclosure with a floor, ceiling and walls. At least two of the walls have a stainless-steel frame with a flush outer cladding

The invention discloses a method for preparing a medical catheter by using a hydrogel coating with effective lubrication, long-term antibiosis and antithrombosis. The method comprises the following steps: mixing a vinyl monomer, a vinyl modified monomer, a cross-linking agent and a photoinitiator to form a hydrogel pre-polymerized solution; the preparation method comprises the following steps: carrying out base catalysis balance, grafting a silane coupling agent with double bonds on the surface of a conduit, and immersing the conduit into an ethanol solution containing a hydrophobic initiator, so that the hydrophobic initiator permeates into a substrate for carrying out a subsequent photocuring reaction. The prepared hydrogel pre-polymerized solution covers the surface of a base material with double bonds on the surface, and the medical catheter material with a hydrogel coating which is effective in lubrication, antibacterial for a long time and resistant to thrombosis is obtained through ultraviolet cross-linking curing. A double-bond reactive group is bridged on the surface of a base material through a base catalysis equilibrium method, a bonding layer is formed on the surface, and the double-bond group contained in the bonding layer is covalently connected with a hydrogel coating, so that tight combination between a polymer network and a solid surface is realized.

The invention is a method for determining liquid-solid adhesion work, during which, in connection with a liquid cylindrically symmetric capillary bridge in fluid medium between an end portion having peripheral circular edge of a measurement element and a solid surface-to-be-testedby performing cylindrical symmetry-keeping modification on the capillary bridgedetermining (S110a) changes of interfacial areas of the capillary bridge and fluid medium, and of the capillary bridge and surface-to-be-tested, andby determining (S100) capillary force, determining (S110b) a total mechanical work corresponding thereto,determining (S120), for the cylindrical symmetry-keeping modification, based on the interfacial area changes, total mechanical work and liquid-fluid interfacial tension a difference value of the solid-liquid and solid-fluid interfacial tensions, and by subtracting that from the liquid-fluid interfacial tension, determining (S130) the liquid-solid adhesion work.The invention is, furthermore, an apparatus for determining liquid-solid adhesion work. (FIG. 1)

The utility model discloses a stirrer for producing self-drying gel for radioactive decontamination on a solid surface, which comprises a stirring box, and a stirring structure is arranged in the stirring box; the stirring device is reasonable in structure and novel in design, when the stirring device is used, a motor works to drive a rotating shaft to rotate, so that a first stirring rod is driven to rotate to stir materials, when the rotating shaft rotates, a third gear can rotate, and under the action of a rotating rod, a first gear, a second gear, a fourth gear and a fifth gear, a second stirring rod can rotate to stir the materials. The position of a third gear is adjustable, so that the first stirring rod can rotate independently, the first stirring rod and the second stirring rod can rotate together, multiple operation modes are achieved, and the operability is high.

The invention provides a preparation method and device of a graphene metal composite material. The preparation method comprises the steps that a metal raw material is prefabricated into metal liquid or metal powder or metal powder coated with a carbon source; a prefabricated metal raw material is sprayed to the first reaction area, and metal powder with the solid metal powder surface is prepared; the metal powder with the solid surface is put into a second reaction area, the metal powder is heated until part or all of the surface of the metal powder is in a liquid state, graphene is deposited on the surface of the metal powder, and a graphene metal compound is obtained; wherein the temperature of the second reaction zone is higher than that of the first reaction zone; the graphene metal compound is put into a cooling area to be cooled, and the graphene metal composite material is obtained; wherein the temperature of the cooling zone is lower than that of the first reaction zone. The invention aims to solve the technical defects of small graphene coating area and low quality in the graphene metal composite material obtained in the prior art.